jargon1

 
Pronunciation: /ˈdʒɑːg(ə)n/

noun

[mass noun]
  • special words or expressions used by a profession or group that are difficult for others to understand: legal jargon
  • archaic a form of language regarded as barbarous, debased, or hybrid.

Derivatives

jargonistic

Pronunciation: /-ˈnɪstɪk/
adjective

Origin:

late Middle English (originally in the sense 'twittering, chattering', later 'gibberish'): from Old French jargoun, of unknown origin. The main sense dates from the mid 17th century